Stimulus function in simultaneous discrimination.
In discrimination learning, the negativity of the stimulus correlated with nonreinforcement (S-) declines after 100 training trials while the stimulus correlated with reinforcement (S+) is paradoxically more positive with lesser amounts of discrimination training. Training subjects on two simultaneous discrimination tasks revealed a within-subjects overlearning reversal effect, where a more-frequently presented discrimination problem was better learned in reversal than was a discrimination problem presented less frequently during training.
D000818:Animals; D010856:Columbidae; D004193:Discrimination Learning; D008297:Male; D008722:Methods; D010056:Overlearning; D012054:Reinforcement, Psychology; D012193:Reversal Learning